I suppose it depends on your investment goals, profile, etc. If you hold the general thesis that "the future" will see continued "progress", increased living standards & more consumers, then it's probably a good bet. If that timeline looks like, say, 50 years (no, I'm not convinced people invest on this kind of timeline, those profits may be too far out, but banks, ...maybe?), then a billion today may be a worldwide monopoly tomorrow. Maybe?